Advanced Java

1. What is a transient variable?
   A transient variable is a variable that may not be serialized.
2. Which containers use a border Layout as their default layout?
   The Window, Frame and Dialog classes use a border layout as their default layout.
3. Why do threads block on I/O?
   Threads block on I/O (that is enters the waiting state) so that other threads may execute while the I/O Operation is performed.
   

Advanced Java

1. What is a transient variable?
   A transient variable is a variable that may not be serialized.
2. Which containers use a border Layout as their default layout?
   The Window, Frame and Dialog classes use a border layout as their default layout.
3. Why do threads block on I/O?
   Threads block on I/O (that is enters the waiting state) so that other threads may execute while the I/O Operation is performed.